DART somo la 32: Inheritance kwenye construct method:

Ineritance kwenye constructor method hasa hapa tunajifunza jins ambavyo utaweza kurithi constructor mrthod kutoka kwenye parent class.

Mfano:

Hapa nina class mbili ambazo ni gari ambayo ni parent class na toyota ambayo ni child class. Kila moja ina constructor method. Hivyo constructor method kutoka kwenye parent class inaanza kitwa kabla ya child class.

class gari {

 // Constructor

 gari() {

   print("Tunauza gari");

 }

}

class Toyota extends gari {

 // Constructor

 Toyota() {

   print("Tunauza toyota");

 }

}

void main() {

 Toyota();

}

Pia unaweza kurirhi constructor yenye patameter. Hapa tunawez atena kutumia keyword supper ili kuweza kuitumia constructor kutoka kwenye parent class kuja kwenye child class.

class gari {

 // Constructor

 gari(String jina, String rangi) {

   print("Tunauza gari");

   print("Name: $jina");

   print("Color: $rangi");

 }

}

class toyota extends gari {

 // Constructor

 toyota(String jina, String rangi) : super(jina, rangi) {

   print("Bei zetu ni nafuu");

 }

}

void main() {

 toyota("Avalon", "Nyeusi");

}

&nb...